This condition indicates the presence of a sterile inflammatory lesion in the shoulder, such as strain or strain. After this condition, the following measures are usually taken: 1. Keep the shoulder joint sufficiently warm and avoid getting cold, because after getting cold, blood circulation will be slowed down and inflammatory metabolites will accumulate, which will stimulate the peripheral nerves and lead to further aggravation of pain and inflammatory edema. 2. Apply hot compresses with a warm water bag 3-5 times a day for 20-30 minutes each time to increase the blood circulation around the shoulder joint and promote the absorption of inflammatory metabolites to help relieve the symptoms. 3.Apply ointment that activates blood circulation and relieves blood stasis, soothes the tendons and improves blood circulation, promotes strain and metabolism of inflammatory metabolites at the injury site, and helps recovery. 4.Take oral Eperisone Hydrochloride tablets to relieve muscle tension around the shoulder caused by blowing air conditioners, only after muscle relaxation can it effectively promote recovery. 5.Take oral Non-steroidal anti-inflammatory painkillers, such as loxoprofen sodium, diclofenac sodium to relieve local inflammatory lesions and reduce pain. After the above treatment, the symptoms will be significantly improved after 3-5 days of time.